Facts About Laser Crystal Revealed
Facts About Laser Crystal Revealed
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These tables incorporate only the commonest host crystals; numerous Other people exist, that happen to be significantly less usually utilised.
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
In addition, some overall flexibility is misplaced in experiments if one can not Check out absorbers with distinct thickness or doping focus, for instance, without the need of exchanging the laser crystal by itself.
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and likewise the upper-point out life time.
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A substantial floor high-quality is obviously important. Requirements of surface area flatness in many cases are much better than . This assists to avoid both scattering losses and wavefront distortions which can degrade the laser's beam excellent. On top of that, scratch and dig specs
g. a skinny disk. As An additional instance, Q-switched lasers access a greater population density from the upper laser degree and they are thus more sensitive to quenching results and energy transfer procedures; hence, a lessen doping density is frequently suitable for these devices. For prime-energy lasers, reduced doping densities will often be accustomed to limit the density of heat era, Whilst slim-disk lasers operate finest with hugely doped crystals. Numerous laser goods never reach the full performance probable due to the fact this kind of details have not been thoroughly worked out.
Several laser crystal products happen to be demonstrated wherever some saturable absorber material is incorporated for passive Q switching of a laser.
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
For quasi-3-amount laser achieve media or perhaps a few-degree gain media, just one usually needs to limit the duration to a worth that's too small for effective pump absorption, as reabsorption outcomes would or else spoil the effectiveness. For side pumping, further criteria arrive into Enjoy; besides effective pump absorption, it can be crucial to acquire a suitable spatial shape from the achieve profile.
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There's an array of crystalline media, which may be grouped in accordance to big atomic constituents and crystalline website buildings. Some important groups of crystals are:
激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。